Chapman's (O. L. Chapman, then at Iowa State and later at UCLA) classic total synthe- sis of (+)-carpanone is so remarkably simple that it is used as an undergraduate labora- tory preparation. It is modeled on a possible biosynthetic route for this lignan-derived natural product. Phenol oxidations figure prominently in many such biosyntheses of natural products. In one step, this reaction creates no less than five contiguous chiral centers, all in the correct relative configuration. K* tert-Buo- DMSO ОН HO. [0] (+)-Carpanone

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A: Here stereochemistry of the given molecule can be known by CIP rule

Q: Which of the following compound consider to be chiral?

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A: Is this compound chiral, achiral or meso ?

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A:

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A: The skeletal structure of C3H7BrO is given below.

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Q: Is the following compound optically active?

A: The given molecule is redrawn as:

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A:

Q: 7. (Identify the following compounds as chiral, achiral, or meso

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Q: Which of the following molecules is chiral? H3C I Н CH3 Н CH3 CH3 H Н CH3 Н CH3

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A: The answer is given as follows

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A:

Q: X- enantiomers?

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Q: Which structure is conjugated? -CN

A:

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A:

Q: How many enantiomers are there in the molecule shown below?

A: The solution is given below -

Q: How many stereoisomers exists for the following molecule? CI CH3 Br

A:

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A:

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A:

Q: 3 In this alkene, highlight the sp -hybridized carbons in red and the sp -hybridized carbons in…

A:

Q: Are they chiral in nature? Are they enantiomeric?

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Q: 1. Н H НО CHO -ОН -ОН -Н CH₂OH and CHO HO-H НО -H H-OH CH₂OH 2. CHO H H OH CH₂OH ОН and H НО CHO -ОН…

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